| 煤矿1号大口径瓦斯抽排井施工实践 |
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| 引用本文： | 周喜顺,齐路恒,李春杰.煤矿1号大口径瓦斯抽排井施工实践[J].中国煤田地质,2006(Z1). |
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| 作者姓名： | 周喜顺 齐路恒 李春杰 |
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| 作者单位： | 河北省煤田地质局第四地质队 河北宣化075100 |
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| 摘 要： | 宣东二号矿布设施工的大口径瓦斯抽放井以小口径导向钻进,后逐级扩孔成井。总结了该孔施工过程中的主要技术经验,如导向孔粗径钻具组合、钻压控制、钻井液使用以及下管和固井等,提出了其中存在的问题以及下一步改进的建议。
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| 关 键 词： | 瓦斯抽排井 导向钻进 煤矿大口径钻孔 |
Coalmine No.1 Large-Diameter Gas Drainage Well Practice |
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| Zhou Xishun,Qi Luheng and Li Chunjie.Coalmine No.1 Large-Diameter Gas Drainage Well Practice[J].Coal Geology of China,2006(Z1). |
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| Authors: | Zhou Xishun Qi Luheng and Li Chunjie |
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| Abstract: | The large-diameter gas drainage well laid out in the Xuandong No.2 Mine used small-diameter pilot drilling,then gradually reaming the borehole and finally completed to designed size.The paper summed up main technical experiences during the operation,such as to use large-diameter drilling tool assemblage in pilot hole,drilling pressure control,drilling fluid selection,going down and cementing.Found out problems existing and put forward improving suggestions. |
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| Keywords: | gas drainage well pilot drilling coalmine large-diameter borehole |
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